| 1650521 | UM91230D | TONE/PULSE DIALER | UMC |
| 1650522 | UM91230DM | TONE/PULSE DIALER | UMC |
| 1650523 | UM91260 | 10 Memory Tone/Pulse Dialer | UMC |
| 1650524 | UM91260A | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650525 | UM91260AM | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650526 | UM91260B | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650527 | UM91260BM | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650528 | UM91260D | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650529 | UM91260DM | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650530 | UM91261 | 10 Memory Tone/Pulse Dialer | UMC |
| 1650531 | UM91261M | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650532 | UM91265 | 15 Memory Tone/Pulse Dialer | UMC |
| 1650533 | UM9126OC | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650534 | UM9126OCM | 10 MEMORY TONE /PULSE DIALER | UMC |
| 1650535 | UM91270 | 20 Memory Tone/Pulse Dialer | UMC |
| 1650536 | UM91270A | 20 MEMORY TONE/PULSE DIALER | UMC |
| 1650537 | UM91270AM | 20 MEMORY TONE/PULSE DIALER | UMC |
| 1650538 | UM91270B | 20 MEMORY TONE/PULSE DIALER | UMC |
| 1650539 | UM91270BM | 20 MEMORY TONE/PULSE DIALER | UMC |
|
| 1650540 | UM91270M | 20 MEMORY TONE/PULSE DIALER | UMC |
| 1650541 | UM91271 | 20 Memory Tone/Pulse Dialer | UMC |
| 1650542 | UM91271 | 20 Memory Tone/Pulse Dialer | UMC |
| 1650543 | UM91272 | 20 Memory Tone/Pulse Dialer | UMC |
| 1650544 | UM91272 | 20 Memory Tone/Pulse Dialer | UMC |
| 1650545 | UM91310-SERIES | Tone/Pulse Dialer | UMC |
| 1650546 | UM9151 | Pulse Dialer | United Microelectronics |
| 1650547 | UM9151-3 | Pulse Dialer | UMC |
| 1650548 | UM9151-3 | Pulse Dialer | United Microelectronics |
| 1650549 | UM91531 | Parallel Input Tone/Pulse Dialer | UMC |
| 1650550 | UM9203 | DTMF Receiver | UMC |
| 1650551 | UM9203 | DTMF Receiver | UMC |
| 1650552 | UM9204 | DTMF Receiver | UMC |
| 1650553 | UM9204 | DTMF Receiver | UMC |
| 1650554 | UM92870 | Integrated DTMF Receiver | UMC |
| 1650555 | UM92870A | INTEGRATED DTMF RECEIVER | UMC |
| 1650556 | UM92870B | INTEGRATED DTMF RECEIVER | UMC |
| 1650557 | UM92870C | INTEGRATED DTMF RECEIVER | UMC |
| 1650558 | UM9301 | PIN Diode | Microsemi |
| 1650559 | UM9310 | Cordless Telephone Controller | UMC |
| 1650560 | UM9310 | Cordless Telephone Controller | UMC |
